Respuesta :

TonyStank777

Answer:

Because it's mostly filled with water. There's more water than there is Erth. And there's more water in this planet than there is in many other planets.

SOFlA

Earth is called the blue planet because:

  • 70% of its surface is covered with water, meaning it is abundant in it.
  • From the space, it looks like a blue ball.

These are some of the factors for considering earth as a blue planet.